Bike Hub Caps w Tiger Ey Reflex Lens?

Stumbled onto these bike hub caps US Patent 1675431. Sorry folks, they only come in models for mounting on nutted axles (no quick release version known). Anyone got a guess on age?
I have a pair each with a disc that mounts behind the axle nut, then the hubcap clips on to that disk covering the nut. Aerodynamic too. Tom